KR20170128340A - Techniques for managing power operation modes of a user equipment (ue) communicating with a plurality of radio access technologies (rats) - Google Patents

Abstract

Certain aspects described herein relate to wireless communications. A first connection may be established with a first serving node using a first radio access technology (RAT), and a second connection may be established with a second serving node using a second RAT. An indication of the power consumption mode for the first connection may be received and the power operation mode of the second connection may be determined based at least in part on the indication.

Description

TECHNICAL FIELD [0001] The present invention relates to techniques for managing power modes of operation of a user equipment (UE) in communication with a plurality of radio access technologies (RATS) RATS)}

35 Priority claim under U.S.C. §119

This application is a continuation-in-part of PCT Application No. 62 / 135,583 entitled " TECHNIQUES FOR MANAGING POWER OPERATION MODES OF A RADIO ACCESS TECHNOLOGIES (RATS) " filed on March 19, 2015, Priority is claimed on U.S. Patent Application No. 15 / 066,214 entitled "TECHNIQUES FOR MANAGING POWER OPERATION MODES OF A USER EQUIPMENT (UE) COMMUNICATION WITH A PLURALITY OF RADIO ACCESS TECHNOLOGIES (RATS)," filed March 10, , Both applications being assigned to the assignee, both of which are expressly incorporated herein by reference in their entirety.

example Initiation  Field

 The present disclosure is directed to techniques for managing power modes of operation of, for example, wireless communication systems and, more particularly, user equipment (UE) communicating with a plurality of radio access technologies (RATs).

Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and the like. These wireless networks may be multi-access networks capable of supporting multiple users by sharing available network resources. Examples of such multiple-access networks include, but are not limited to, code division multiple access (CDMA) networks, time division multiple access (TDMA) networks, frequency division multiple access (FDMA) networks, orthogonal FDMA (OFDMA) FDMA (SC-FDMA) networks.

A wireless communications network may include multiple base stations (eNodeBs, for example) capable of supporting communications for multiple user equipments (UEs). The UE may also communicate with the base station on the downlink and uplink. The downlink (or forward link) refers to the communication link from the base station to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the base station.

Additionally, the UEs may be equipped to communicate in wireless local area networks (WLANs) by accessing one or more hotspots using a wireless communication technology such as 802.11 (Wi-Fi). In this regard, the UE may communicate with a radio access network (RAN) of a wireless wide area network (WWAN) (e.g., a cellular network), along with the RAN of one or more WLANs. The UE may further include a receiver (e.g., a Long Term Evolution (LTE), a Universal Telecommunication Mobile System (UMTS), or similar receiver) operable to communicate with the RAN of the WWAN, and another receiver operable to communicate with the RAN of the WLAN (E. G., An 802.11 Wi-Fi receiver). The UE may additionally or alternatively comprise a single receiver operable to communicate with both RANs (e.g., WWAN and WLAN). In either case, to provide simultaneous access to one or more network nodes, to offload traffic from the WWAN to the WLAN and vice versa, and / or "RAN aggregation " Connections over WWANs and WLANs (e.g., in a medium access control (MAC), packet data convergence protocol (PDCP), or similar layers) that may be referred to as "

In current implementations of RAN aggregation, a WWAN access point schedules downlink communications over WWAN and WLAN connections for a given UE, and the UE scans the WWAN RAN over a WWAN connection and the WLAN RAN over a WLAN connection. Communication. The WLAN access point can then communicate the data scheduled by the WWAN between the UE and the WWAN access point. Thus, on the downlink, data packets from WWAN and WLAN connections may be split and received non-sequentially in the UE; The UE may therefore reorder the out-of-order packets at the MAC, RLC or PDCP layer based on the sequence numbers associated with the data packets received over the independent WWAN and WLAN connections. However, if the UE enters a power mode of operation (e. G., Idle mode) through one or more of the connections to conserve power consumption and / or otherwise (e.g., to place the access point with better wireless conditions) It is also possible to scan channels and so on. In this example, the UE receives sufficient time to switch data packets to a different power mode of operation (e.g., connection mode) in order to receive data packets over one or more of the connections and properly perform the reordering of the received data packets It may not be. Thus, the UE may request that data packets be retransmitted, which may cause unnecessary waste of resources of the wireless networks.

The following presents a simplified summary of one or more aspects in order to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects and is intended to neither identify key or critical elements of all aspects nor delineate the scope of any aspect or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the later detailed description.

TECHNICAL FIELD [0002] This disclosure relates generally to wireless communication systems, and more particularly to techniques for managing power modes of operation of user equipment (UE) communicating with a plurality of radio access technologies (RATs) . For example, communication between one or more of the different radio access technologies (RATs), between wireless devices, base stations, and / or access points in a radio access network (RAN) in a power mode of operation to conserve power consumption Are described herein.

According to an aspect, a wireless device (e.g., user equipment (UE)) may communicate with access points in multiple RANs using different radio access technologies (RAT) and / or network architectures. For example, the wireless device may access one or more networks by communicating with a wireless wide area network (WWAN) or an evolutionary node B or other component of the RAN to a cellular network, an access point or similar component of the RAN to the WLAN, . In one example, a UE may communicate with a second network (e.g., a WLAN) by using a first RAT and a second RAT with a first network (e.g., a WWAN) (E.g., RAN aggregation) may be implemented wherein the second access point communicates with the first access point to provide traffic aggregation for the UE to the first network do. The first and second access points may be part of different RANs or otherwise use it. This arrangement allows for improved connectivity with the first network and / or the second network, but it does not allow for issues of ordering packets when the connection with at least one of the access points is in a power mode of operation to conserve power It may be caused. Thus, communications via power operation modes and / or connections with access points can be managed to ensure that packets are not dropped based on a connection with at least one of the access points in a power mode of operation.

In one example, a method for wireless communication is provided. The method includes establishing a first connection with a first serving node using a first RAT, establishing a second connection with a second serving node using a second RAT, wherein the first connection and the second connection Establishing the second connection configured for traffic aggregation, receiving an indication of a power consumption mode for the first connection, and determining a power operation mode of the second connection based at least in part on the indication .

The method also includes receiving the indication of the power consumption mode from the first connection, determining the reorder status associated with reordering the packets received via at least one of the first connection or the second connection . The method may further comprise that the reorder status is based on at least one of a second indication that reordering is in progress or not in progress, a time remaining for the packet reorder timer, or a time since the packet reorder timer started have. The method may include the step of determining a power operation mode of the second connection to exit the power operation mode based at least in part on determining the reorder status. The method also includes receiving an indication of a power consumption mode from the first connection comprising determining whether packets received via at least one of the first connection or the second connection are successfully reordered, 2 < / RTI > connection may include based at least in part on the determination that the packets are reordered.

The method also includes receiving DRX inactivity of a first RAT associated with entering a different power mode of operation for a first RAT after expiration of a discontinuous reception (DRX) inactivity timer, And determining whether a timer is ringing. The method may include determining that the DRX inactivity timer is ringing, and determining that the DRX inactivity timer is ringing based on receiving the downlink transmission on the first connection. The method includes receiving an indication of a power consumption mode from the first connection when the on-duration timer of the first RAT associated with leaving the other power mode of operation for the first RAT after expiration of the on- Or < / RTI > whether or not it is possible. The method may also include that the step of receiving the indication is based at least in part on receiving the packet over the first connection.

The method may additionally comprise receiving via the first connection or the second connection a control packet indicating that the step of receiving the indication is to exit the power operation mode via the second connection. The method determines that the power operation mode is exited until the other control packet indicating that the power operation mode is allowed for the second connection is received via the first connection or the second connection And < / RTI > The method may also include that the control packet indicates a time for entering the power operation mode.

In another example, an apparatus for wireless communication is provided. The apparatus includes a transceiver, a memory configured to store instructions, and at least one processor communicatively coupled to the transceiver and memory. At least one processor is configured to establish a first connection with a first serving node using a first RAT and establish a second connection with a second serving node using a second RAT, Is configured for traffic aggregation to establish the second connection, receive an indication of a power consumption mode for the first connection, and determine a power operation mode of the second connection based at least in part on the indication do.

The apparatus includes means for receiving at least one processor an indication of a power consumption mode for the first connection based on determining a reorder status associated with reordering received packets via at least one of the first connection or the second connection As shown in FIG. The device may also include that the reorder status is based on at least one of a second indication that reordering is in progress or not in progress, a time remaining for the packet reorder timer, or a time since the packet reorder timer has started have. Additionally, the apparatus may comprise at least one processor configured to determine a power mode of operation of the second connection based at least on exiting the power mode of operation based at least on determining the reorder status.

The apparatus also receives at least one processor an indication of a power consumption mode from the first connection based at least on determining whether packets received via at least one of the first connection or the second connection are successfully reordered And at least one processor may be configured to determine a power mode of operation of the second connection based at least in part upon a determination that the packets are reordered. The apparatus is further configured to determine whether a DRX inactivity timer of the first RAT associated with entering the different power mode of operation for the first RAT after expiration of the discontinuous reception inactivity timer And to receive an indication of a power consumption mode from the first connection. The apparatus may also include at least one processor configured to determine that a DRX inactivity timer is ringing based at least on a determination that the DRX inactivity timer is ringing based on receiving the downlink transmission via the first connection have. The apparatus also includes means for determining whether the on-duration timer of the first RAT associated with leaving the other power mode of operation for the first RAT after the expiration of the on-duration timer expires, And to receive an indication of a power consumption mode from the first connection based at least on that.

The apparatus may also include at least one processor configured to receive an indication based, at least in part, on receiving the packet over the first connection. The apparatus also includes being configured to receive an indication based on at least one processor receiving a control packet on a first connection or a second connection indicating that the processor is exiting a power mode of operation via a second connection It is possible.

According to another example, a method for wireless communication is provided. The method comprises the steps of serving the UE over a first connection using a first RAT, determining whether the UE is configured in a power mode of operation associated with a second connection with the access point using a second RAT, Scheduling data for a second connection during a first time interval based at least in part on a determination that the first connection and the second connection are configured in a power mode of operation associated with the second connection, / RTI >

The method may also include that the scheduling of data on the first connection and the second connection is based at least in part on a determination that the UE leaves the power operation mode via the second connection. The method also includes determining that the second connection is in a power mode of operation and that scheduling data on the second connection during the first time interval is based at least in part on the size of the data buffer available for transmission to the UE ≪ / RTI > Additionally, the method may include scheduling at least one packet on a second connection during an inactivity timer interval associated with a second RAT to maintain a second connection out of the power mode of operation. The method may also include signaling the inactivity timer interval to the UE in the radio resource control signaling. The method may also include inhibiting scheduling of at least one packet on the second connection based at least in part on a determination that the size of the data buffer available for transmission to the UE is less than a threshold.

In another example, an apparatus for wireless communication is provided. The apparatus includes a transceiver, a memory configured to store instructions, a transceiver, and at least one processor communicatively coupled to the memory. At least one processor is configured to serve the UE over the first connection using the first RAT and to determine whether the UE is configured in a power mode of operation associated with the second connection with the access point using the second RAT, Scheduling data for a second connection during a first time interval based at least in part on a determination that the UE is configured in a power mode of operation associated with the second connection and scheduling data on the first connection and the second connection during a second time interval Lt; / RTI >

The apparatus may also include at least one processor configured to schedule data on the first connection and the second connection based at least in part on a determination that the UE leaves the power operation mode via the second connection.

To the accomplishment of the foregoing and related ends, the one or more aspects are pointed out in the claims and include the features hereinafter fully described. The following detailed description and the annexed drawings set forth in detail certain illustrative characteristics of one or more aspects. These features, however, are indicative of but a few of the various ways in which the principles of various aspects may be employed, and the description is intended to include all such aspects and their equivalents.

To facilitate a more complete understanding of the described aspects, reference is now made to the accompanying drawings, wherein like elements are referred to by like numerals. These drawings are not to be construed as limiting the aspects described herein, but are intended to be exemplary only.
1 is a block diagram conceptually illustrating an example of a wireless communication system, in accordance with various aspects of the disclosure.
2 is a block diagram conceptually illustrating examples of eNodeBs and UEs constructed in accordance with various aspects of the disclosure.
3 is a block diagram conceptually illustrating the aggregation of radio access technologies in a UE, in accordance with various aspects of the present disclosure.
4 is a block diagram conceptually illustrating an example of data paths between a UE and a PDN in accordance with various aspects of the disclosure.
5 is a block diagram conceptually illustrating an example of a UE and an eNodeB with respective components configured in accordance with various aspects of the disclosure.
6 is a flow chart illustrating a method of determining a power mode of operation in accordance with various aspects of the disclosure.
7 is a block diagram conceptually illustrating an example of a wireless communication system, in accordance with various aspects of the disclosure.
8 is a flow chart illustrating a method of scheduling communications in accordance with various aspects of the disclosure.
9 is a flow chart illustrating a method of scheduling communications in accordance with various aspects of the disclosure.
10 is a flow chart illustrating a method of scheduling communications in accordance with various aspects of the disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some instances, well known structures and components are shown in block diagram form in order to avoid obscuring these concepts.

Various schemes for scheduling communications in wireless networks with traffic aggregation are described. For example, a wireless device (e.g., a user equipment (UE)) can communicate with a first access point using a first RAT to access a first wireless network and use a second RAT to access a second access Point, where the second access point may facilitate further access to the first wireless network via the first access point. For example, a second access point, which may be part of a radio access network (RAN) different from the first access point, communicates with the first access point (e.g., via a backhaul link) Communication can be enabled. In this regard, the wireless device may connect to the first access point and the second access point using the first and second RATs, respectively, to access the first wireless network. The packets may be communicated from the first and second access points to the wireless device simultaneously and may be processed nonsequentially by reaching the wireless device. Thus, the wireless device may reorder packets based, at least in part, on the sequence number indicated for each packet received from the first and second access points. The reordering of packets or other data units may be performed by one or more network layers such as a medium access control (MAC) layer, a radio link control (RLC) layer, a packet data convergence protocol (PDCP) layer, (TCP) or a TCP / IP layer, a user datagram protocol (UDP) or a UDP / IP layer, an application layer, or the like.

In one example, the wireless device may enter a power mode of operation through a connection with the first or second access point. The power mode of operation may be in a power saving mode or other mode while the wireless device may interrupt communication. The power mode of operation may include reserving the wireless resources of the wireless device for the associated connection for predetermined periods such that the signals can not be received or transmitted during the period. However, this may be because some packets may not be received through a connection in a power mode of operation and because the first and / or second access point having an active connection with the wireless device may not know the other connection in the power mode of operation, The device may also suppress packet reordering. Thus, packet reordering may be interrupted, and packets may be dropped if the packets are not received and reordered within a predetermined period of time.

In a particular example, the wireless device may detect (e.g., detect data transmission / reception traffic inactivity through a connection, scan to find other access points on different channels during periods defined by the power mode of operation (E. G., Based at least in part on < / RTI > determining the power consumption of the access point). When the wireless device is in a power mode of operation, the access point may buffer packets destined for the wireless device until packets are requested or otherwise the device exits the power mode of operation. In some instances, the access point may keep the traffic indication map (TIM) bits set in the beacons for the wireless device in the power mode of operation and notify the wireless device about the buffered data packets. This may allow the wireless device to detect that the access point has buffered data packets for the wireless device, and the wireless device may thus be able to detect (e. G., Power save (PS-Poll the access point can send buffered data packets to the wireless device because it can request data packets and / or exit the power mode of operation and notify the access point (e.g., using a power-up, power-down or similar function).

In this regard, when the wireless device is in a power mode of operation, data packets may be buffered on the access point for a variable amount of time from a few milliseconds to a few hundreds of milliseconds before transmission. The beacon transmission interval (e.g., 100 milliseconds (ms) in Wi-Fi), data packet arrival time at the access point for the next beacon transmission, delayed due to the busy transmission medium at the target beacon transmission time (TBTT) (E.g., some wireless devices may process beacons only at multiple forward traffic indication map (DTIM) intervals), (e.g., Various factors such as beacons to be missed / lost (due to a collision on the transmission medium), an indication to exit the power mode display from the wireless device to the access point, or the time taken for the PS-Poll handshake, It may affect the duration.

In any case, the reordering timeout on the wireless device (e.g., at the PDCP layer) is less than the variable buffering duration (e.g., 65 ms) on the access point when the wireless device is in power mode of operation Value. This may cause frequent reorder timeouts on the wireless device if packets (e.g., PDCP packets) are received on another aggregated connection, but packets transmitted over the connection in the power mode of operation may cause the access point There is one or more packets in the reorder queue. The reorder timeout can be used to control the flushing of packets from the reorder queue to the upper layers (e. G., UDP / IP, TCP / IP, etc., Lt; / RTI > of the PDCP packets). In addition to the reordering timeout, flushing of packets may be triggered when the memory used by the packets to be reordered becomes too large. The PDCP packets buffered from the access point may ultimately arrive at the wireless device easily but this may be after the PDCP layer reorder window of the wireless device has moved and the delayed PDCP packets are dropped and are no longer used. In addition, any amount of reordering may increase the processing burden on the wireless device, which may adversely affect device power, and / or may require additional memory to temporarily store non-sequential packets.

Thus, aspects described herein relate to preventing such packet losses through aggregated connections that allow power modes of operation. Various mechanisms may be used at the wireless device and / or access point to handle the power modes of operation to receive packets transmitted over the associated connections. For example, a wireless device receiving communications from a first access point via a first connection may determine whether a second connection with a second access point is in a power mode of operation. The power mode of operation may be, for example, substantially any full power or limited power mode of operation, such as a connection mode in which a second connection has active resources to communicate with an access point, An idle mode, which may be limited to receiving periodically, a transceiver, or other radio frequency (RF) front end components associated with a second connection may be powered down for a period of time. In any case, the wireless device may communicate with one or more aspects of communications over the first and / or second connection (e.g., receiving communications over a first connection, reordering received packets, Exit the power mode of operation for the second connection based on (e.g., determining the ringing or expiration of the timers associated with receiving communications over the first connection, receiving control packets, etc.) For example, into a connection mode or other full power mode). In particular, for example, one or more aspects of the communication may correspond to an indication of a power consumption mode through the first and / or second connection, wherein the indication of the power consumption mode substantially corresponds to a first connection and / Any indication that power is being used by the wireless device over the first and / or second connection, such as the reorder status associated with reordering packets received over the connection, an indication of the time that is maintained for the packet reordering timer, An indication of a determination as to whether or not packets received via the first connection and / or the second connection are successfully reordered, a determination of whether the packets received through the first connection and / or the second connection are associated with entering a different power mode of operation for the first RAT after expiration of the DRX inactivity timer An indication or determination as to whether a discontinuous reception (DRX) inactivity timer of the first RAT is ringing, an on-duration expiration An indication or determination as to whether the on-duration timer of the first RAT associated with leaving the other power mode of operation for the first RAT is expired, receiving a downlink transmission via the first connection, Lt; RTI ID = 0.0 > a < / RTI > first connection or a second connection indicating exiting the power mode of operation through the first connection or the second connection.

In another example, the first access point may determine whether the second connection is in a power mode of operation (e.g., based on information from the second access point), and thus, Thereby avoiding providing data to the second access point for transmission. In another example, the first access point may instruct the wireless device to exit the power mode of operation through the second connection (e.g., by sending a control packet to the wireless device) And may provide data to the second access point for transmission to the device.

The techniques described herein may be used for various wireless communication networks such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other networks. The terms "network" and "system" are often used interchangeably. CDMA networks may implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma 2000, and the like. UTRA includes Wideband CDMA (WCDMA), and other variants of CDMA. cdma2000 covers IS-2000, IS-95 and IS-856 standards. A TDMA network may implement radio technology such as Global System for Mobile Communications (GSM). The OFDMA network may implement radio technologies such as evolved UTRA (Evolved UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDMA. UTRA and E-UTRA are part of UMTS. 3GPP LTE and LTE-Advanced (LTE-A) are new releases of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). cdma2000 and UMB are described in documents from an organization named " 3rd Generation Partnership Project 2 "(3GPP2). The techniques described herein may be used for other wireless networks and radio technologies as well as wireless networks and radio technologies mentioned above. For clarity, certain aspects of the techniques are described below for LTE, and LTE terminology is used in many of the following descriptions.

1 is a block diagram conceptually illustrating an example of a wireless communication system 100 in accordance with aspects described herein. The wireless communication system 100 includes base stations (or cells) 105, user equipment (UEs) 115, and a core network 130. One or more of the base stations 105 determines when to schedule communications to one or more of the UEs 105 via the plurality of connections in the traffic aggregation based on the power mode of operation determined for at least one of the plurality of connections To selectively include and / or couple the scheduling component 520 as further described herein. One or more of the UEs 115 may be configured to manage the power mode of operation through one or more of a plurality of connections in the traffic aggregation to facilitate receiving communications for < RTI ID = 0.0 > reordering < / RTI & May include and / or be coupled to communication component 540 as further described herein. Base stations 105 may communicate with UEs 115 under the control of a base station controller (not shown), which may be part of core network 130 or base stations 105 in various embodiments. The base stations 105 may communicate control information and / or user data with the core network 130 via the first backhaul links 132. In some embodiments, base stations 105 may communicate with each other directly or indirectly via second backhaul links 134, which may be wired or wireless communication links. The wireless communication system 100 may support operation on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters may simultaneously transmit modulated signals on multiple carriers. For example, each communication link 125 may be a multi-carrier signal modulated according to the various radio technologies described above. Each modulated signal may be transmitted on a different carrier and carry control information (e.g., reference signals, control channels, etc.), overhead information, data, and so on. The wireless communication system 100 may also simultaneously support operations on multiple flows. In some aspects, multiple flows may correspond to multiple wireless wide area networks (WWANs) or cellular flows. In other aspects, the plurality of flows may correspond to a combination of WWANs or cellular flows and wireless local area networks (WLANs) or Wi-Fi flows.

The base stations 105 may communicate wirelessly with the UEs 115 via one or more base station antennas. Each of the base station 105 sites may provide communication coverage for an individual geographic coverage area 110. In some embodiments, base stations 105 may be a base transceiver, a radio base station, an access point, a radio transceiver, a base service set (BSS), an extended service set (ESS), a NodeB, an eNodeB, a home NodeB eNodeB, or some other suitable term. The geographic coverage area 110 for the base station 105 may be divided into sectors (not shown) that only make up a part of the coverage area. The wireless communication system 100 may include different types of base stations 105 (e.g., macro, micro, and / or pico base stations). There may be overlapping coverage areas for different technologies. In general, base stations 105-a may be base stations (e.g., base stations such as LTE or UMTS macrocells, picocells, femtocells, etc.) corresponding to WWANs and base stations 105- (E. G., Wi-Fi hotspot) corresponding to the WLAN. It should be appreciated, however, that a single base station 105 can support communications over multiple RATs (e.g., LTE and Wi-Fi, LTE and UMTS, UMTS and Wi-Fi, etc.).

In implementations, the wireless communication system 100 is an LTE / LTE-A network communication system. In LTE / LTE-A network communication systems, the term evolutionary Node B (eNodeB) may be generally used to describe base stations 105. The wireless communication system 100 may be a heterogeneous LTE / LTE-A network in which different types of eNodeBs provide coverage for various geographic areas. For example, each eNodeB 105 may provide communication coverage for macro cells, picocells, femtocells, and / or other types of cells. The macrocell may cover a relatively large geographic area (e. G., A few kilometers radius) and may allow unrestricted access by the UEs 115 with service subscriptions with the network provider. The picocell may cover a relatively smaller geographic area (e.g., buildings) and may allow unrestricted access by the UEs 115 with service subscriptions with network providers. The femtocell may also cover relatively small geographic areas (e.g., assumptions), and may further include, in addition to unrestricted access, also UEs 115 having an association with the femtocell (E.g., UEs 115 in a subscriber group (CSG), UEs 115 for users in a home, etc.). The eNodeB 105 for a macro cell may also be referred to as a macro eNodeB. ENodeB 105 for picocell may be referred to as pico eNodeB. And the eNodeB 105 for the femtocell may be referred to as a femto eNodeB or a home eNodeB. eNodeB 105 may support one or many (e.g., two, three, four, etc.) cells. The wireless communication system 100 may support the use of LTE and WLAN or Wi-Fi by one or more of the UEs 115.

The core network 130 may communicate with the eNodeBs 105 or other base stations 105 via the first backhaul links 132 (e.g., S1 interface, etc.). The eNodeBs 105 may also be coupled to the first backhaul links 134 (e.g., via the core network 130) via the second backhaul links 134 (e.g., X2 interface, etc.) 132, for example, directly or indirectly. The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, eNodeBs 105 may have similar frame timing, and transmissions from different eNodeBs 105 may be approximately time aligned. For asynchronous operation, eNodeBs 105 may have different frame timings, and transmissions from different eNodeBs 105 may not be temporally aligned. The techniques described herein may be used for either synchronous or asynchronous operations.

The UEs 115 may be distributed throughout the wireless communication system 100, and each UE 115 may be static or mobile. The UE 115 may also be a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, A mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. The UE 115 may be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a tablet computer, a laptop computer, a cordless phone, a wireless local loop (WLL) UE 115 may communicate with macro eNodeBs, pico eNodeBs, femto eNodeBs, repeaters, and the like.

The communication links 125 shown in the wireless communication system 100 may include uplink (UL) transmissions from the UE 115 to the eNodeB 105 and / or downlink transmissions from the eNodeB 105 to the UE 115 DL) transmissions. Downlink transmissions may also be referred to as forward link transmissions, while uplink transmissions may also be referred to as reverse link transmissions.

In certain aspects of the wireless communication system 100, the UE 115 may be configured to support carrier aggregation (CA) with two or more eNodeBs 105. ENodeBs 105 used for carrier aggregation may be co-located or may be connected via high-speed connections. In either case, since the information can be easily shared among the various cells used to perform the carrier aggregation, it is possible for the UE 115 and the eNodeBs 105, Adjustment of the aggregation may be performed more easily. Adjusting the aggregation of component carriers when the eNodeBs 105 used for carrier aggregation are in a non-co-location (e. G., Far away or not having a high speed connection between them) .

In addition, for example, some base stations 105 may communicate to base stations using different RATs to aggregate traffic from both base stations (e.g., for a given UE 115) , It can support traffic aggregation. For example, UE 115-a may communicate with base station 105-a and base station 105-b, and base station 105-b may communicate with UE 115- May communicate with base station 105-a to coordinate the aggregation of traffic from / to base station 105-a. Thus, in one example, UE 115-a may support LTE and Wi-Fi communications using one or more transceivers. In this regard, for example, the traffic aggregation may be performed by the UE 115-a using the individual RATs to transmit data for the first wireless network to the base station 105-a, which operates the different RANs, RTI ID = 0.0 > 105-b, < / RTI > Base station 105-b may provide data to / from base station 105-a for communication in the associated first wireless network. This configuration allows increased throughput or other improved connectivity characteristics for UE 115-a. Also, in this regard, the traffic aggregation is performed in such a way that packets or data units are received out-of-order at UE 115-a and have corresponding sequence numbers so that UE 115-a can reorder the packets Or at one or more network layers with packets or data units. For example, traffic aggregation may occur via the MAC layer, the RLC layer, the PDCP layer, the IP layer, the TCP or TCP / IP layer, the UDP or UDP / IP layer,

2 is a block diagram conceptually illustrating examples of eNodeB 210 and UE 250 configured in accordance with aspects described herein. For example, the base station / eNodeB 210 and the UE 250 of the system 200, as shown in FIG. 2, may each be one of the base stations / eNodeBs and the UEs in FIG. Thus, the base station / eNodeB 210 determines the timing of scheduling communications to one or more UEs 250 through multiple connections in the traffic aggregation based on the power mode of operation determined for at least one of the multiple connections And / or may be coupled to and / or coupled to the scheduling component 520 as further described herein. The UE 250 may also be configured to manage the power mode of operation through one or more of a number of connections in the traffic aggregation to facilitate receiving communications over one or more connections for their reordering. May optionally include and / or be coupled to the communication component 540 as further described. In some aspects, eNodeB 210 may support traffic aggregation as described herein. In some aspects, the UE 250 may also support traffic aggregation. The UE 250 may receive configuration information for e. G., Traffic aggregation from the eNodeB 210 or other network entities. The base station 210 may be provided with antennas 234 _{1 -t} and the UE 250 may be provided with antennas 252 _1-r where t and r are integers greater than or equal to one.

At base station 210, base station transmit processor 220 may receive data from base station data source 212 and control information from base station controller / processor 240. The control information may be carried on a PBCH, a PCFICH, a physical hybrid automatic repeat / request (HARQ) indicator channel (PHICH), a PDCCH, and the like. Data may be carried on a PDSCH or the like. The base station transmit processor 220 may process (e.g., encode and symbol map) data and control information to obtain data symbols and control symbols, respectively. The base station transmit processor 220 may also generate reference symbols for the PSS, SSS, and cell-specific reference signal (RS), for example. The base station transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on data symbols, control symbols, and / And may provide output symbol streams to base station modulators / demodulators (MODs / DEMODs) 232 _1-t . Each base station modulator / demodulator 232 may process an individual output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each base station modulator / demodulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The downlink signals from modulators / demodulators 232 _1-t may be transmitted via antennas 234 _{1 -t} , respectively.

At UE 250, UE antennas 252 _1-r may receive downlink signals from base station 210 and transmit the received signals to UE modulators / demodulators (MODs / DEMODs) 254 _{1 -r} ), respectively. Each UE modulator / demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) an individual received signal to obtain input samples. Each UE modulator / demodulator 254 may further process input samples (e.g., for OFDM, etc.) to obtain received symbols. The UE MIMO detector 256 may obtain received symbols from all UE modulators / demodulators 254 _1-r and, if applicable, may perform MIMO detection on the received symbols, Symbols. The UE receive processor 258 may process (e.g., demodulate, deinterleave, and decode) the detected symbols and provide decoded data for the UE 250 to the UE data sink 260 , And may provide decoded control information to the UE controller / processor 280.

On the uplink, at the UE 250, the UE transmit processor 264 receives data (e.g., for the PUSCH) from the UE data source 262 and data from the UE controller / processor 280 (e.g., Lt; / RTI > (for PUCCH) control information. The UE transmit processor 264 may also generate reference symbols for the reference signal. The symbols from the UE transmit processor 264 may be precoded by the UE TX MIMO processor 266, if applicable, and transmitted to the UE modulator / demodulators 254 _1- (for example, for SC-FDM, etc.) _r , and may be transmitted to the base station 210. [ At base station 210, the uplink signals from UE 250 may be received by base station antennas 234, processed by base station modulators / demodulators 232, and, if applicable, May be detected by the MIMO detector 236 and may be further processed by the base station receive processor 238 to obtain decoded data and control information transmitted by the UE 250. [ Base station receive processor 238 may provide decoded data to base station data sink 246 and decoded control information to base station controller / processor 240.

The base station controller / processor 240 and the UE controller / processor 280 may direct the operation at the base station 210 and the UE 250, respectively. The UE controller / processor 280 and / or other processors and modules at the UE 250 may also be configured to perform the functions illustrated in, for example, the functional blocks illustrated in FIG. 5, and / or other processes (E. G., Flowcharts illustrated in Figures 6 and 8 to 10). In some aspects, at least a portion of the execution of these functional blocks and / or processes may be performed by block 281 in the UE controller / processor 280. Base station memory 242 and UE memory 282 may store data and program codes for base station 210 and UE 250, respectively. For example, UE memory 282 may store configuration information for multiple connectivity provided by base station 210 and / or another base station. Scheduler 244 may be used to schedule UE 250 for data transmission on the downlink and / or uplink.

In one configuration, UE 250 includes means for establishing a first connection with a first serving node using a first RAT and establishing a second connection with a second serving node using a second RAT, And means for determining a power mode of operation of the second connection based at least in part on the indication. In one aspect, the aforementioned means comprises a UE controller / processor 280 configured to perform the functions listed by the means described above, a UE memory 282, a UE receive processor 258, a UE MIMO detector 256, Demodulators 254, and / or UE antennas 252 (and / or may be coupled thereto). In other aspects, the above-described means may be a module, a component, or any device configured to perform the functions listed by the means described above. Examples of such modules, components, or apparatus may be described with respect to FIG.

In one configuration, the base station 210 comprises means for serving a UE over a first connection using a first RAT, means for determining whether the UE is configured for a power mode of operation associated with a second connection with an access point using a second RAT Means for scheduling data for a second connection during a first time interval based at least in part upon a determination that the UE is configured in a power mode of operation associated with the second connection, and / And means for scheduling data on the first connection and the second connection during the interval. The base station 210 may also include means for communicating with the UE via a second connection through an access point using a second RAT, means for communicating a control packet indicating leaving the power mode of operation via a second connection, Means for transmitting data to the UE over a connection, and / or means for scheduling data for transmission on the first and second connections based at least in part on transmitting control packets. Base station 210 may comprise means for determining whether the second connection is in a power mode of operation based at least in part upon receiving information from an access point indicating whether the second connection is in a power mode of operation and / And means for scheduling data for transmission on the first connection and the second connection based at least in part on whether the second connection is in a power mode of operation. In one aspect, the above-described means comprises a base station controller / processor 240 configured to perform the functions listed by the means described above, a base station memory 242, a base station receive processor 238, a base station MIMO detector 236, Modulators / demodulators 232, and / or base station antennas 234 (and / or may be coupled thereto). In other aspects, the above-described means may be a module, a component, or any device configured to perform the functions listed by the means described above. Examples of such modules, components, or devices may be described with respect to FIG.

3 is a block diagram conceptually illustrating the aggregation of radio access technologies at the UE, in accordance with aspects described herein. The aggregation may be accomplished using one or more component carriers 1 to N (CC ₁ -CC _N ) to the WLAN access point (AP) (eNodeB) using the eNodeB 305-a and / or the WLAN component carrier 340 Mode UE 315 that is capable of communicating with a multi-mode UE 305-b. The eNodeB 305-a determines the timing of scheduling communications to one or more UEs 315 through multiple connections in the traffic aggregation based on the power mode of operation determined for at least one of the multiple connections And / or may be coupled to and / or coupled to the scheduling component 520 as further described herein. The UE 315 may be operatively coupled to one or more connections to manage power operational modes through one or more of a plurality of connections in the traffic aggregation to facilitate receiving communications over one or more connections for their reordering. May optionally include and / or be coupled to the communication component 540 as further described. The multi-mode UE in this example may refer to a UE supporting more than one radio access technology (RAT). For example, the UE 315 may be an example of one of the UEs of Figs. 1, 2, 3, 4, and 5. The eNodeB 305-a may be one of the eNodeBs or base stations of Figs. 1, 2, 3, 4, and 5. Although only one UE 315, one eNodeB 305-a, and one AP 305-b are illustrated in FIG. 3, the system 300 includes any number of UEs 315, eNodeBs / RTI > and / or < RTI ID = 0.0 > APs 306. < / RTI > In one particular example, UE 315 communicates with one eNodeB 305-a via one LTE component carrier 330, while communicating with another eNodeB 305-a via another component carrier 330 Communication can be performed.

eNodeB (305-a) may send the information over a forward (downlink) channels (332-1 through 332-N) on the LTE component carriers CC ₁ to CC _N (330) to the UE (315). In addition, UE (315) may transmit the information via the reverse of the (uplink) channel (334-1 to 334-N) on the LTE component carriers CC ₁ to CC _N to eNodeB (305-a). Similarly, the AP 305-b may transmit information to the UE 315 via the forward (downlink) channel 352 on the WLAN component carrier 340. The UE 315 may also transmit information to the AP 305-b via the reverse (uplink) channel 354 of the WLAN component carrier 340.

In one example, the eNB 305-a includes the WLAN component carrier 340 as well as the component carrier 330-1 (and / or the component carriers (e. 330-1 through 330-N). ≪ / RTI > In one example, there may be multiple WLAN component carriers 340. In this regard, the traffic aggregation communicates traffic received via the WLAN component carrier 340 to the eNB 305-a and from the eNB 305-a via the WLAN component carrier 340 to the UE 315 Is provided by an AP 305-b that communicates traffic. Thus, eNB 305-a may utilize various carriers (at least component carrier 330-1 and WLAN component carrier 340) to facilitate communication between UE 315 and the corresponding network. The UE 315 may also be configured to access another network associated with the AP 305-b or another WLAN AP. This may result in inconsistencies between the selection and the expected and actual network discovery for the WLAN at the UE 315, because the described configuration may be agnostic to the user and / or higher layers of the UE 315. [ The aspects described herein may be applied to WLAN component carriers 340 that support traffic aggregation from UE 315 to eNB 305-a using various component carriers 330-1 through 330-N and 340. [ , Where the traffic aggregation may occur at one or more network layers as described to reorder the packets or other data units that may be received out of sequence.

In describing the various entities of FIG. 3 as well as other figures associated with some of the disclosed embodiments, nomenclature associated with a 3GPP LTE or LTE-A wireless network is used for illustrative purposes. It should be appreciated, however, that system 300 may operate in other networks, such as, but not limited to, OFDMA wireless networks, CDMA networks, 3GPP2 CDMA2000 networks, and the like.

4 is a block diagram conceptually illustrating an example of data paths 445-a and 445-b between UE 415 and EPC 480, in accordance with an aspect of the aspects described herein. eNodeB 405 may be configured to determine when to schedule communications to one or more UEs 415 through multiple connections in the traffic aggregation based on the power mode of operation determined for at least one of the multiple connections. / RTI > may optionally include and / or be coupled to the scheduling component 520 as further described in FIG. The UE 415 may be further described herein to manage the power mode of operation through one or more of a number of connections in the traffic aggregation to facilitate receiving communications over one or more connections for its reordering. And / or may be coupled to the communication component 540 as described above. The data paths 445-a and 445-b are used by the eNodeBs 405 and the WLAN APs 406 in the context of the wireless communication system 401 for aggregating traffic for transmission using the resources of the eNodeBs 405 and the WLAN APs 406, do. This bearer configuration includes a data path 445-a traversing the eNodeB 405 and a data path 445-a traversing the WLAN AP 406 and eNodeB 405 in the traffic aggregation (e.g., RAN aggregation) (445-b). The system 200 of FIG. 2 may be an example of portions of the wireless communication system 401.

The wireless communication system 401 may include a UE 415, an eNodeB 405, a WLAN AP 406, an Evolved Packet Core (EPC) 480, a PDN 440, and a peer entity 455. Although the UE 415 may be configured to support traffic aggregation as described herein, the traffic aggregation may be controlled by the eNodeB 405 and may be agnostic to the upper layers of the UE 415 agnostic. EPC 480 may include a mobility management entity (MME) 430, a serving gateway (SGW) 432, and a PDN gateway (PGW) A home subscriber system (HSS) 435 may be communicatively coupled with the MME 430. [ UE 415 may include LTE radio 420 and WLAN radio 425. It should be appreciated that the UE 415 may include one or more of these radios, and / or the radios may be integrated. Thus, in one example, LTE radio 420 may also include WLAN radio (or may be configured to process WLAN signals) in addition to WLAN radio 425, in this example UE 415, Includes two WLAN interfaces-one at the LTE radio 420 and one at the WLAN radio 425. These elements may refer to one or more aspects of the corresponding portions described above with reference to previous or subsequent figures. For example, the UE 415 may be an example of UEs in FIGS. 1, 2, 3, and 5, and the eNodeB 405-a may be an eNodeB / The WLAN AP 406 may be an example of the APs described in Figures 1, 3, and 5, and / or the EPC 480 may be an example of the core network of Figure 1. [

In one example, eNodeB 405-a may provide UE 415 with access to PDN 440, which may be associated with one or more LTE component carriers, as described. In addition, for example, the WLAN AP 406 may provide access to the PDN 440 to the UE 415 by traversing the eNodeB 405. Thus, the eNodeB 405 and the WLAN AP 406 may communicate to aggregate traffic to / from the UE 415. Thus, the UE 415 may be subject to traffic aggregation in which one connection is for a first access point (eNodeB 405) and another connection is for a second access point (WLAN AP 406) Where the second access point communicates with the first access point to aggregate traffic to the UE 415. [ With this configuration, bearer (s) and / or associated component carriers established (e.g., in FIG. 3) with respect to EPC 480 and UE 415 may be transmitted to eNodeB 405 and / or WLAN AP 406 ). ≪ / RTI > In one example, UE 415 selects bearer selection with separate bearers established between EPC 408 and eNodeB 405 and between EPC 480 and WLAN AP 406 (via eNodeB 405) Can be configured. In this example, data traffic (e.g., IP packets or other data units) is transmitted on individual bearers that may be mapped to carriers between UE 415 and eNodeB 405 / WLAN AP 406 do. In another example, RLC / PDCP level aggregation may be configured in which the UE 415 bearers are between the eNodeB 405 and the EPC 480 for WLAN AP 406 carriers. In this example, data traffic (e.g., IP packets) is aggregated at the RLC / PDCP level and communicated to the eNodeB 405 and the WLAN AP 406 with the UE 415 or individual carriers.

For example, downlink (DL) PDCP packets from eNodeB 405 to UE 415 may be split across LTE and WLAN connections for reception by LTE radio 420 and WLAN radio 425. For example, the eNodeB 405 may schedule DL PDCP packets over the WLAN (e.g., from the eNodeB 405 to the data path 445-b traversing from the WLAN AP 406 to the UE 415) can do. UE 415 may receive non-sequential PDCP packets when LTE and WLAN link layer transmissions occur independently. Accordingly, UE 415 may send packets (or other data units at different network layers in the aggregation of traffic, as described) in the PDCP layer based on the sequence number, before sending the packets to the upper layers And may be configured to reorder. Also, in this regard, the UE 415 may define a reordering timeout to flush out the packets held in the reorder queue and move the reordering window, and a missing sequence numbered packet may be generated 415 does not receive the packet before the expiration of the reorder timeout, it may generate data loss in the upper layers. This scenario may be mitigated using aspects described herein to control the power mode of operation of one connection based on the power consumption mode of the other connection.

Although aspects of FIG. 4 have been described for LTE, similar aspects of aggregation and / or multiple connections may also be implemented for UMTS or other similar system or network wireless communication radio technologies.

5 is a block diagram 500 conceptually illustrating an example of an eNodeB 505, UE 515, and components configured in accordance with aspects described herein. 6 and 8-10 described herein in conjunction with FIG. 5 illustrate exemplary methods 600, 800, 900, and 1000 in accordance with aspects described herein. It should be noted that while the operations described below in Figures 6 and 8-10 are presented in a particular order and / or performed by the example components, the components performing the ordering and actions of the actions may vary from implementation to implementation I have to understand. In addition, the following actions or functions may be performed on a specially programmed processor, specially programmed software or a processor executing a computer-readable medium, or any other hardware component and / or software component capable of performing the described actions or functions ≪ / RTI > may be performed by other combinations of < / RTI >

5, the base station / eNodeB 505, the WLAN AP 506, and the UE 515 of the block diagram 500 may be coupled to the base stations / eNodeBs, APs, and / Or UEs. For example, the UE 515 may communicate with the eNB 505 to access the wireless network, the examples described in Figures 1-4. In one example, the UE 515 may include a UE 115, a UE 250, a UE 315, a UE 415, and the eNB 505 may include an access point 105, an eNodeB 210, an eNodeB 305-a, an eNodeB 405 and the like, and the WLAN AP 506 may include an access point 105, an AP 305-b, a WLAN AP 406, and the like. In an aspect, eNB 505 and UE 515 may establish one or more downlink channels to communicate via downlink signals, which may be transmitted from eNB 505 to UE 515 via configured communication resources, (E. G., Via transceiver 509) by eNB 505 to communicate control and / or data messages (e. G., Via signal transceiver 559) ) ≪ / RTI > ENB 505 and UE 515 may also establish one or more uplink channels communicating over the uplink signals and these signals may be transmitted from UE 515 to eNB 505 via configured communication resources, (E.g., via transceiver 559) to communicate control and / or data messages (e.g., via signaling) to UE 515 (e.g., via transceiver 509) eNB 505. < / RTI >

In one example, the eNodeB 505 and the UE 515 are downlinked via the first communication link 525 using a first radio access technology (RAT) (e.g., WWAN RAT, e.g., LTE) and / Or may communicate uplink communications. The WLAN AP 506 and the UE 515 may also communicate over the second communication link 526 using a second radio access technology (RAT) (e.g., WLAN RAT). Although not shown, it should be appreciated that the WLAN AP 506 may also include a transceiver for communicating signals with the UE 515 using a second RAT. Each of communication links 525 and 526 may be an example of communication links 125 in Fig. ENodeB 505 may also be used by the UE 515 to allow traffic to be communicated between the UE 515 and the network associated with the eNodeB 505 by using wireless access via the eNodeB 505 and the WLAN AP 506. [ The WLAN AP 506 may communicate with the WLAN AP 506 to configure and provide traffic aggregation, which may also be referred to as RAN aggregation, to the eNodeB 505 (e.g., / RTI > receive / provide traffic from / to the eNodeB 505 to / from the UE 515 via the backhaul link 532 or other link between the WLAN AP 506 and the UE 515). It should be appreciated that other connections to the UE 515 may be aggatated in addition to or in lieu of one or more of the connections with the eNodeB 505 and / or the WLAN AP 506. [ For example, other connections may be agatable for one or more additional or alternative RATs at the UE 515, and the concepts described herein may be implemented in one or more of the RATs to prevent packet loss in the traffic aggregation Lt; RTI ID = 0.0 > operating modes. ≪ / RTI >

In an aspect, UE 515 may include one or more processors 503 and / or memory 504, which may be communicatively coupled, for example, via one or more busses 507, (E. G., LTE, UMTS, etc.) of the eNodeB 505 to access the first wireless network (e. G., Using a first communication link 525, also referred to herein as a first connection) (E. G., Using a second communication link 526, also referred to herein as a second connection) to communicate with the eNodeB 505 as a first access point to use and to access the second wireless network using a WLAN AP Or otherwise implement this, in conjunction with a communication component 540 for communicating with a WLAN AP 506 as a second access point using a RAT (e.g., 802.11 Wi-Fi) In one example, the eNodeB 505 is configured to allow the UE 515 to communicate with both the eNodeB 505 and the WLAN AP 506 via the first communication link 525 and the second communication link 526, To configure the traffic aggregation for the UE 515 to access the network associated with the eNodeB 505. In this regard, as described, the WLAN AP 506 communicates the UE 515 traffic with the eNodeB 505 via the backhaul link 532 to the UE 515 via the second communication link 526, Traffic aggregation can be provided.

For example, various operations related to communication component 540 may be implemented by, or otherwise executed by, one or more processors 503, and in one aspect may be executed by a single processor, while in other aspects, Different ones may be executed by a combination of two or more different processors. For example, in one aspect, one or more of the processors 503 may be a modem processor, or a baseband processor, or a digital signal processor, or an application specific integrated circuit (ASIC), or a transmission processor, Transceiver processors, or any combination thereof. Also, for example, the memory 504 may be a random access memory (RAM), a read only memory (ROM), a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM) Such as a hard disk, a floppy disk, a magnetic strip, an optical disk (e.g., a compact disk (CD), a digital versatile disk (DVD) Key drive), a register, a removable disk, and one or more processors 503 or any other suitable medium for storing computer readable code or instructions and / or software that may be accessed and read by a computer But is not limited to, a non-volatile computer readable medium. The memory 504 or computer readable storage medium may also reside within one or more processors 503, outside of one or more processors 503, and may include a plurality of entities, such as one or more processors 503, Lt; / RTI >

In particular, one or more processors 503 and / or memory 504 may execute actions or actions defined by communication component 540 or its subcomponents. For example, one or more of the processors 503 and / or memory 504 may include an action defined by the indicator receiving component 550 to receive an indicator of the power consumption mode associated with the first connection to the eNodeB 505 Or actions. (E.g., one or more processor modules of one or more processors 503) and / or one or more processors (not shown) stored in memory 504 503 to perform the specially configured indicator receiving operations described herein. ≪ RTI ID = 0.0 > [0050] < / RTI > For example, one or more processors 503 and / or memory 504 may be coupled to an action defined by a power operation mode management component 552 for managing a power operation mode through a second connection to the WLAN AP 506 Or actions. In one aspect, for example, power operation mode management component 552 may be implemented as hardware (e.g., one or more processor modules of one or more processors 503) and / or one or more processors Readable code or instructions executable by at least one of the processor 503 to perform the power operation mode management operations described herein. As described above, in one example, the power consumption mode may be for a mode in which the UE 515 consumes power to transmit and / or receive wireless communications over the associated connection.

For example, one or more of the processors 503 and / or memory 504 may include actions or actions defined by the packet reordering component 554 to reorder the packets received via the first and second connections Where the packet reordering component 554 may include a packet reorder timer 556 and after the timer packets in the unreceived reorder window may be dropped. In one aspect, for example, the packet reordering component 554 may be stored in hardware (e.g., one or more processor modules of one or more processors 503) and / or in one or more processors 503 to perform the specially configured packet reordering operations described herein. ≪ RTI ID = 0.0 > [0053] < / RTI > For example, a packet reordering timer 556 may be configured from a network configuration received from one or more eNodeBs (e.g., eNodeBs 505, or other network entities, etc.), memory 504 of UE 515 ≪ / RTI > Packet reordering timer 556 may also sound when it is detected that packets are being received non-sequentially, and based on the expiration of packet reordering timer 556, packet reordering component 554 may perform packet reordering (And / or may drop non-sequential packets).

For example, one or more of the processors 503 and / or memory 504 may optionally perform actions or operations defined by the DRX inactivity timer 558, and after a timer, The connection may enter a power mode of operation and / or after expiration of the on-duration timer 560 the UE 515 exits the power mode of operation so that the eNodeB 505 may communicate with the UE 515 Lt; RTI ID = 0.0 > downlink < / RTI > In one aspect, for example, the DRX inactivity timer 558 and / or the on-duration timer 560 may be implemented in hardware (e.g., one or more processor modules of one or more processors 503) and / 504 and may be implemented or otherwise managed by computer readable code or instructions executable by at least one of the one or more processors 503 to be initialized and sounded as described herein, .

Similarly, in one aspect, the eNB 505 may include one or more processors 553 and / or memory 555 that may be communicatively coupled, for example, via one or more busses 557 And communicates with the UE 515 via a first communication link 525 and communicates with the UE 515 using RAN aggregation over the WLAN AP 506 via a second communication link 526. [ May operate in conjunction with component 520 or otherwise implement it. In one example, the scheduling component 520 communicates with the WLAN AP 506 via the backhaul link 532 to provide data (e.g., data) to the WLAN AP 506 in the traffic aggregation for communication to the UE 515 (E.g., packets or other data units in an application, TCP, UDP, IP, PDCP, RLC or MAC layer, as described above) and transmitted to the WLAN AP 506 communicated thereto by the UE 515, And the like. For example, as described above, various functions related to the scheduling component 520 may be implemented or otherwise performed by the one or more processors 553, and in one aspect may be executed by a single processor, while the other Different aspects of the functions in aspects may be performed by a combination of two or more different processors. In one example, one or more processors 553 and / or memory 555 may be configured as described in the above examples for one or more processors 503 and / or memory 504 of UE 515 .

In one example, one or more processors 553 and / or memory 555 may execute actions or actions defined by scheduling component 520 or its subcomponents. For example, one or more of the processors 553 and / or memory 555 may be configured to allow a connection between the WLAN AP 506 and the UE 515 (e.g., a connection via the communication link 526) And may execute the actions or actions defined by the power operation mode determination component 522 to determine whether or not the power operation mode is determined. In one aspect, for example, the power operation mode determination component 522 may be implemented using hardware (e.g., one or more processor modules of one or more processors 553) and / or one or more processors And computer readable code or instructions executable by at least one of the microprocessor 553 to perform the specifically configured power mode operation operations described herein. For example, one or more of the processors 553 and / or memory 555 may communicate with the WLAN AP 506 and / or the WLAN AP 506 based at least in part on whether the connection between the WLAN AP 506 and the UE 515 is in a power- May perform actions or actions defined by the data scheduling component 524 for scheduling data over the connection between the UE 515 and / or the eNodeB 505 and the UE 515. [ In one aspect, for example, data scheduling component 524 may be stored in hardware (e.g., one or more processor modules of one or more processors 553) and / or memory 555 and may be stored in one or more processors 553 ), To perform the specially configured data scheduling operations described herein.

For example, one or more of the processors 553 and / or memory 555 may include actions or actions defined by a buffer size determination component 527 that determines the buffer size associated with the buffer to communicate with the UE 515. For example, Lt; / RTI > In one aspect, for example, the buffer size determination component 527 may be implemented in hardware (e.g., one or more processor modules of one or more processors 553) and / or one or more processors 553, < / RTI > to perform the specially configured buffer size determination operations described herein. For example, one or more of the processors 553 and / or memory 555 may include actions or actions defined by the indicator sending component 528 to send an indicator to the UE 515 to exit the power mode of operation. Lt; / RTI > In one aspect, for example, the indicator transmission component 528 may be stored in hardware (e.g., one or more processor modules of one or more processors 553) and / or one or more processors 553, < / RTI > to perform specially configured indicator transmission operations as described herein. For example, one or more of the processors 553 and / or memory 555 may include actions or actions defined by the mode information receiving component 530 to receive information of the power mode of operation from the WLAN AP 506 Alternatively, it may be executed. In one aspect, for example, the mode information receiving component 530 may be implemented in hardware (e.g., one or more processor modules of one or more processors 553) and / or one or more processors 553, < / RTI > to perform the specially configured mode information receiving operations described herein.

The transceivers 509 and 559 may be configured to transmit and receive wireless signals via one or more antennas, an RF front end, one or more transmitters, and one or more receivers. In an aspect, transceivers 509 and 559 may be tuned to operate at designated frequencies such that UE 515 and / or eNB 505 may communicate at a given frequency. In an aspect, one or more processors, such as a base station, a base station, a base station, a base station, a base station, a base station, a base station, and / or a base station may operate at a specified frequency and power level based on configuration, (S) 503 may constitute a transceiver 509 and / or one or more processors 553 may constitute a transceiver 559.

In one aspect, transceivers 509 and 559 are configured to process digital data transmitted and received using transceivers 509 and 559 (e.g., using a multi-band-multimode modem not shown) Lt; / RTI > In an aspect, transceivers 509, 559 may be multi-band and may be configured to support multiple frequency bands for a particular communication protocol. In an aspect, transceivers 509 and 559 may be configured to support a plurality of operating networks and communication protocols. Thus, for example, transceivers 509 and 559 may enable transmission and / or reception of signals based on the designated modem configuration.

6 illustrates a method 600 of determining (e.g., by a UE) a power mode of operation for one or more traffic aggregated connections. Providing traffic aggregation, as described, may be performed by the UE 515 and the network associated with the eNodeB 505 since the eNodeB 505 can manage the connection to the eNodeB 505 and the WLAN AP 506. [ It is possible to improve the connectivity. Thus, method 600 includes, at block 610, establishing a first connection with a first serving node. In one aspect, communication component 540 includes a first serving node (e.g., eNodeB 505) with one or more processors 503, memory 504, and / or transceiver 509, And a first connection (e.g., communication link 525). For example, communication component 540 may establish a first connection using a first RAT (e.g., LTE or other UMTS or cellular technology, etc.). In one example, the communication component 540 may perform a random access procedure with the eNodeB 505, or alternatively may request establishment of a connection therewith.

The method 600 also includes, at block 612, establishing a second connection with a second serving node, wherein the second connection is configured for traffic aggregation with the first connection. For example, communication component 540 may communicate with a second serving node (e.g., WLAN AP 506) with one or more processors 503, memory 504, and / or transceiver 509, for example. , Another eNodeB or cell, etc.) and a second connection (e.g., communication link 526), where the second connection is configured for traffic aggregation with the first connection. In one example, the communication component 540 may establish a second connection using a first RAT or a second RAT (e.g., Wi-Fi). The communication component 540 may establish a second connection based on, for example, requesting a connection with the WLAN AP 506 and performing any billing / authorization procedures with it. In one example, the eNodeB 505 may facilitate connection between the UE 515 and the WLAN AP 506 to provide traffic aggregation via the WLAN AP 506, as described above. For example, the eNodeB 505 may instruct the UE 515 to establish a second connection with the WLAN AP 506, and may provide instructions to establish a second connection or the like. In any event, the UE 515 may communicate with the WLAN AP 506 via the second connection and the WLAN AP 506 may communicate the UE 515 data to the eNodeB 505 as described Wherein the first and second connections are configured to provide traffic aggregation.

The communication component 540 can receive data from the eNodeB 505 505 over the communication link 525 and from the WLAN AP 506 over the communication link 526 in the traffic aggregation And packet reordering component 554 may reorder packets that may be received in a nonsequential manner by simultaneously receiving packets over a number of links. For example, data may be split across the links in the PDCP layer, and therefore the packet reordering component 554 may reorder packets based at least in part on the PDCP sequence number associated with it.

The method 600 may also include receiving an indication of a power consumption mode for the first connection at block 614. For example, the indicator receiving component 550 may receive an indication of a power consumption mode for the first connection with the one or more processors 503, the memory 504, and / or the transceiver 509 . As described above and further herein, the indication of the power consumption mode may relate to substantially any indication that the consumption of power to receive the data may be inferred by the UE 515. [ This indication may indicate, for example, that the data is being received or received over the first connection, and / or that the second connection may be used to aggregate the transmission of data to the UE 515 have.

In any case, method 600 also includes, at block 616, determining a power mode of operation of the second connection based at least in part on the indication. For example, the power operation mode management component 522 may be coupled to a second connection (not shown), such as, for example, one or more processors 503, memory 504, and / or a transceiver 509, Can be determined. For example, in determining the power operation mode, the power operation mode management component 552 may be configured to exit the power operation mode (e.g., idle mode, power saving mode, or saving power consumption at the UE 515) To enter a different associated mode), wherein the indication relates to receiving communications via a first connection and / or possibly a second connection. In this regard, for example, the power mode of operation over the second connection may be terminated to receive communications over the second connection if desired for RAN aggregation.

Thus, in one example, receiving an indication of the power consumption mode at block 614 includes determining, at block 618, the reorder status associated with reordering the packets received via the first and / or second connection And may optionally be included. In one aspect, the indicator receiving component 550 may receive packets received via the first and / or the second connection with one or more processors 503, memory 504, and / or transceiver 509 You can determine the reorder status associated with reordering. For example, the packet reordering component 554 may include a reorder status that may indicate whether a plurality of packets are successfully reordering (e.g., before expiration of the packet reordering timer 556), a packet reordering timer 556 An indication of whether or not the packet reordering timer 556 has expired, and the like. In this case, for example, the power operation mode management component 552 may determine to exit the power operation mode (e.g., for the WLAN link), where the indicator receiving component 550 determines that the reorder status is successful And determines whether the packet reordering timer 556 has reached or expired a threshold (e.g., an expiration value, a difference from an expiration value, etc.), or if the traffic in memory waiting to be reordered (E.g., before the packet reordering timer 556 expires), the WLAN AP 506 receives the pending communications for the second connection before the reordering is deemed unsuccessful (e.g., before the packet reorder timer 556 expires) Try to do at least one of them.

In one example, the power operation mode management component 552 controls when the interface of the communication component 540 communicating over the communication link 526 enters the power operation mode for the second connection, via the packet reordering component 554 ). In one example, the packet reordering component 554 operates in the PDCP or MAC layer to reorder the packets received from the eNodeB 505 and the WLAN AP 506. The packet reordering timer 556 rings and the packet reordering component 554 determines that the second connection is in a power mode of operation (e.g., that the associated interface of the communication component 540 is in a power mode of operation) The packet reordering component 554 exits the power operation mode via the second connection (e.g., transitions to an active mode to receive communications) (e.g., via the PS-Poll mechanism) , Poll the WLAN AP 506 for buffered data, and so on. This may be achieved, for example, by at least one of packet reordering component 554 receiving at least one of packet reordering timer 556 reaching a predetermined value, packet reordering timer 556 expiration, packet reordering timer 556 starting to ring, ≪ / RTI > In any case, leaving the power mode of operation, polling for buffered data, etc. may be performed by the UE 515 before expiration of the packet reordering timer 556 (and dropping of non-sequential packets) 506, thereby allowing early delivery of the reordered stream, which prevents data loss and also minimizes memory consumption and improves the user experience. As an alternative to using PS-Poll, the device may temporarily schedule data traffic on the WLAN uplink to exit the sleep mode. This may be more efficient than using the PS-poll because the power saving control indicating that the power operation mode has been exited can be piggybacked onto the user data.

7, which illustrates an exemplary system 700 for communicating packets between a UE 702, a WLAN AP 706, and an eNodeB 704. The system 700 includes a base station (e.g. In system 700, the UE WLAN STA interface enters a power saving mode with WLAN AP 706 at 710. The WLAN AP 706 periodically transmits a beacon TIM (e.g., with a 70 ms beacon interval and / or a 280 ms DTIM interval). For example, the WLAN AP transmits a TIM indicating 0 (no traffic) (712). The eNodeB 704 is configured to receive the various PDCPs 702, 703, 704, 702, 703, 704, 702, 704, Schedules packets. Because WLAN AP 706 is in power save mode with UE 702, packets 7, 11, and 12 are buffered at 716 until the power save mode ends. In the meantime, the eNodeB 704 sends packets 13, 14, and 15 to the UE 702 at 718. The UE 702 may remain on the ROD timer expiration based on receiving non-sequential packets from the eNodeB 704 (e.g., based on detecting that there is at least a threshold time remaining in the reorder timer) (For example, to exit the power saving mode) from the 722 to the active mode. Thus, at 724, the buffered packets 7, 11, and 12 are received and the reorder holes are filled without data loss.

Also, receiving an indication of the power consumption mode, e.g., at block 614, may optionally include determining whether packets received via the first and / or second connection at block 620 are successfully reordered have. In one aspect, the indicator receiving component 550 is coupled to receive (e.g., receive) a first and / or second connection, e.g., with one or more processors 503, memory 504, and / or a transceiver 509 (E. G., Whether the gap in the sequence number is filled) can be determined. For example, the indicator receiving component 550 may attempt to reorder the packets received via the communication links 525 and 526, and the packet reordering component 554 may attempt to reorder the received packets (e.g., packet reordering timer 556 ) Based on at least partly notifying the indicator receiving component 550 of when the packets could be successfully reordered and / or successfully reordered (based on expiration of the packet). Also, in one example, when the packet reordering component 554 notifies the successful packet reordering to the indicator receiving component 550, the indicator receiving component 550 may determine that the communication component 540 is in a power operation mode May enter the power mode of operation through the second connection, which may be subject to other considerations at the management component 552 (e.g., the interface associated with the second connection may enter the power mode of operation) To the power operation mode management component 552. < RTI ID = 0.0 >

Also, for example, LTE may use DRX to enable a power operation mode (e.g., power save mode) at UE 515, where eNodeB 505 and UE 515 may use the same state machine for DRX Which causes eNodeB 505 to transmit to UE 515 at times when it is received and to cause UE 515 to sleep at other times (e.g., hold radio resources) . Thus, in one example, the power operation mode management component 552 may manage the power operation mode for the second connection based at least in part on the power operation mode (e.g., DRX) of the first connection. The DRX defines various timers and if one of them rings, the UE 515 can not sleep (e.g., hold radio resources for the first connection). These timers include a DRX inactivity timer 558 that starts when the UE 515 is scheduled by the eNodeB 505 (e.g., by the scheduling component 520) and receives downlink transmissions, And an on-duration timer 560 that is periodically executed.

Thus, in this example, receiving an indication of the power consumption mode at block 614 includes determining at block 622 whether a DRX inactivity timer of the first RAT associated with entering a different power mode of operation for the first RAT is ringing And the like. In one aspect, the indicator receiving component 550 may be coupled to a communication link 525, for example, with one or more processors 503, memory 504, and / or a transceiver 509 To determine if the DRX inactivity timer 558 of the first RAT associated with entering a different power mode of operation for the first RAT is ringing. For example, the tolling is initialized to a day value and the timer reaches zero as the lower limit (e.g., the timer counts down and thus the timer decrements over time) May be referred to as a timer that is incremented / decremented based on the clock of the corresponding processor until the timer value is reached as an upper limit (e.g., the timer counts up and thus the ringing increases the timer value over time). The communication component 540 may start / re-start the DRX inactivity timer 558 if a downlink transmission is received from the eNodeB 505. [ Thus, if the indicator receiving component 550 determines that the DRX inactivity timer is ringing, it may instruct the power operation mode management component 552 to exit the power operation mode via the second connection. The power operation mode management component 552 may cause the communication component 540 to exit the power mode of operation (e.g., via the interface associated with the second connection) and to transmit the PS- Poll and so on. This can prevent unsuccessful reordering of packets on receipt of downlink transmissions from eNodeB 505, which causes the DRX inactivity timer 558 to ring, resulting in a power outage mode through the second connection do. Also, for example, the indicator receiving component 550 may first instruct the power operation mode management component 552 to exit the power operation mode by receiving a downlink transmission (as opposed to transmitting an uplink transmission) It may determine that it has caused a DRX inactivity timer 558 to begin to ring before.

In another example, receiving an indication of the power consumption mode at block 614 may comprise determining at block 624 whether the on-duration timer of the first RAT associated with exiting a different power mode of operation for the first RAT is expired And may optionally be included. In one aspect, the indicator receiving component 550 may be coupled to a communication link 525, for example, with one or more processors 503, memory 504, and / or a transceiver 509 Duration timer 560 of the first RAT associated with exiting the different power mode of operation for the first RAT is expired. For example, the on-duration timer 560 may cause the UE 515 to exit the power mode of operation through the first connection such that the eNodeB 505 periodically transmits a downlink transmission to the UE 515 every DRX cycle Lt; / RTI > Thus, when this timer 560 expires, the power operation mode management component 552 may determine (for example, by instructing the communication component 540 to exit the power operation mode on the associated interface) Exit the power operation mode. Thus, when the indicator receiving component 550 determines the expiration of the on-duration timer 560, it sends the power operation mode management component 552, via the interface associated with the second connection, To exit the power mode of operation for the second connection, and to perform a PS-Poll to the WLAN AP 506 over the second connection. As described, this can prevent unsuccessful reordering of packets because the second connection is activated if the first connection is activated based on the expiration of the on-duration timer 560. [ Although not shown, the eNodeB 505 may communicate with the WLAN AP 506 to determine when to transmit communications to the WLAN AP 506 for transmission over the second connection (e. G., A similar DRX state machine such as UE 515) It is to be appreciated that it is possible to manage similar DRX inactivity and on-duration timers.

In a further example, receiving an indication of the power consumption mode at block 614 may optionally include determining at block 626 whether one or more packets are received via the first connection. In one aspect, the indicator receiving component 550 may be configured to determine such information from the communication component 540, for example, along with one or more processors 503, memory 504, and / or a transceiver 509 May determine whether one or more packets are received over the first connection, which may include one or more packets. For example, if the indicator receiving component 550 determines that one or more packets are received by the communication component 540 via the first connection, the indicator receiving component 550 may, for example, To exit the power mode of operation for the second connection (e.g., via the interface associated with the second connection) and to perform a PS-Poll to the WLAN AP 506 via the second connection. This may prevent unsuccessful reordering of the packets because the second connection is activated if the packets are received over the first connection so that the packets can also be forwarded via the second connection before expiration of the packet reorder timer 556, Lt; / RTI >

Further, in another example, receiving an indication of the power consumption mode at block 614 may optionally include receiving an indication in the control packet via the first and / or second connection at block 628. [ In one aspect, the indicator receiving component 550 is coupled to the controller 504 via a first and / or second connection, for example, with one or more processors 503, memory 504, and / Lt; RTI ID = 0.0 > (e. G., PDCP control PDU). ENodeB 505 (and / or WLAN AP 506) may send an indication in the control packet to UE 515, as described in more detail below. For example, the eNodeB 505 (and / or the WLAN AP 506) may send a control packet based on obtaining a data burst (and / or transmitting a burst) for transmission to the UE 515 May be transmitted. In one example, the start of a burst may include a control packet. In any event, when the indicator receiving component 550 receives the control packet, the indicator receiving component 550 sends an indication to the power operation mode management component 552 (e.g., To exit the power mode of operation for the second connection and to perform a PS-Poll to the WLAN AP 506 via the second connection. For example, the control packet may specify a time to leave the power operation mode, a periodic pattern to enter / leave the power operation mode, and so on, and the indicator receiving component 550 may thus determine the power operation mode management component 552 ). ≪ / RTI > In any case, this means that the eNodeB 505 (and / or the WLAN AP 506) may cause the UE 515 to enter the power mode of operation via the second connection if it has data to be transmitted on the second connection It is possible to prevent non-successful reordering of packets. Also, for example, the power operation mode management component 552 may be configured to leave the power operation mode until at least another control packet is received indicating that the UE 515 is allowed to enter the power operation mode via the second connection And may manage the second connection to stay.

8 illustrates an exemplary method 800 for determining when to schedule data over a connection (e.g., by an eNB) in a traffic aggregation where the connection may be in a power mode of operation. The method 800 includes servicing the UE over a first connection using a first RAT, In an aspect, the scheduling component 520 may be coupled to a first RAT (e.g., LTE or other UMTS or cellular (e.g., (E. G., Communication link 525) using a < / RTI > For example, as described, the UE 515 may perform random access procedures or otherwise request resources for communicating with the eNodeB 505, and the eNodeB 505 may thus communicate with the eNodeB 505 via the communication link 525 May permit resources to the UE 515. The scheduling component 520 also establishes a connection between the WLAN AP 506 and the UE 515 based at least in part on communicating data to / from the WLAN AP 506 via the backhaul link 534. [ Lt; RTI ID = 0.0 > 515 < / RTI >

The method 800 also determines, at block 812, whether the UE is configured with a power mode of operation associated with a second connection with an access point using the second RAT. In one aspect, the power mode of operation decision component 522 may be configured to determine the power mode of operation of the UE (e.g., UE 515), along with one or more processors 553, memory 555, and / or transceiver 559, Associated with a second connection (e.g., communication link 526) with an access point (e.g., WLAN AP 506) using a second RAT (e.g., Wi-Fi) ≪ / RTI > For example, the power operation mode determination component 522 may determine that the UE 515 has received a request from the WLAN AP 506 and / or the UE 515 to the WLAN AP 506 and / or the UE 515, (E.g., a notification received from the WLAN AP 506 or the UE 515 when the UE 515 enters the power mode of operation through the second connection) or the like Display may be received.

In another example, determining whether the UE 515 is configured in a power mode of operation via a second connection at block 812 may comprise determining the size of the data buffer available for transmission to the UE in block 814 have. In one aspect, the buffer size determination component 527, in conjunction with, for example, one or more processors 553, memory 555, and / or transceiver 559, The size of the buffer can be determined. For example, the buffer size determination component 527 may determine the available capacity size of the buffer and may determine (for example, if the capacity size of the available buffer is below a threshold or there is a lower trend for a period of time, etc.) The operation mode can be deduced. For example, the buffer may correspond to the communications for the UE 515 or the second connection in general.

The method 800 may also include, at block 816, scheduling data for a second connection during a first time interval based at least in part on a determination that the UE is configured in a power mode of operation associated with the second connection . In an aspect, data scheduling component 524 may be coupled to receive, transmit, and / or receive data, for example, one or more processors 553, memory 555, and / or transceiver 559, May schedule data for a second connection (e.g., communication link 526) during a first time interval based at least in part on the decision. For example, the data scheduling component 524 may determine that the UE 515 enters a power mode of operation for the second connection (e.g., based on or determined by the power mode determination component 522) And thus can schedule data for transmission over the communication link 526 (thus, no data is transmitted over the communication link 525) during the time interval. The data may then be buffered by the WLAN AP 506 until the UE 515 exits the power mode of operation. Specifically, in one example, communication component 540 may periodically receive signals in a power mode of operation and may check for a TIM (e.g., as described in FIG. 7 above). In this regard, the TIM bitmap may represent the data available for transmission by the WLAN AP, and the power operation mode management component 552 may exit the power mode of operation with the second connection to receive the buffered data .

The method 800 may also include, at block 818, scheduling data on the first connection and the second connection during a second time interval. In one aspect, the data scheduling component 524 may be coupled to a first connection and a second connection during a second time interval, for example, with one or more processors 553, memory 555, and / Lt; / RTI > Scheduling data on the first connection and the second connection during the second time interval at block 818 may optionally include a decision at block 820 that the UE leaves the power operation mode via the second connection. For example, the power operation mode determination component 522 may determine that the UE 515 has exited the power operation mode via the second connection (e.g., as described above, (E.g., based on receiving an indication from WLAN AP 506, AP 506, UE 515, etc.) that determines that capacity is increasing or increasing. Based on this determination, for example, the data scheduling component 524 may determine that a second time interval has elapsed since the second connection is no longer in the power mode of operation at the UE 515, Lt; / RTI > connection. Accordingly, the data scheduling component 524 additionally implements the traffic aggregation by scheduling the data over the first connection.

ENodeB 505 may also attempt to ensure that UE 515 does not re-enter the power mode of operation for the second connection during the second time interval. Thus, the method 800 includes scheduling at least one packet on the second connection during the inactivity timer interval associated with the second RAT to leave a power mode of operation out of the power mode of operation for a duration of the second time interval, As shown in FIG. In one aspect, the data scheduling component 524 may be coupled to the data processing component 524, such as, for example, one or more processors 553, memory 555, and / or transceiver 559, (E. G., Communication link 526 via backhaul link 534 communications to WLAN AP 506) during the inactivity timer interval associated with the 2 RAT. ≪ RTI ID = 0.0 > For example, the inactivity timer value may be known by the eNodeB 505 after the UE 515 can enter the power mode of operation for the second connection based on the second RAT, Is scheduled within this inactivity time interval to avoid entering the power mode of operation at the UE 515. [ In one example, eNodeB 505 may configure an inactivity timer value for UE 515 (e.g., via RRC signaling). The inactivity timer value may be specifically used for inactivity determined via one or more connections in the traffic aggregation. Also, for example, the data scheduling component 524 may be configured to allow the UE 515 to re-enter the power mode of operation once (e.g., after expiration of the inactivity timer) Based on an event that the available capacity of the buffer associated with the transmission achieves a threshold) and / or to suspend scheduling of at least one packet on the second connection after a period of time.

FIG. 9 illustrates an exemplary method 900 for sending control packets to a UE (e.g., by an eNB or eNodeB), causing the UE to exit a power mode of operation through a connection in the traffic aggregation. The method 900 includes servicing the UE over the first connection using the first RAT in block 910. [ In an aspect, the scheduling component 520 may be coupled to a first RAT (e.g., LTE or other UMTS or cellular (e.g., (E. G., Communication link 525) using a < / RTI > For example, as described, the UE 515 may perform random access procedures or otherwise request resources for communicating with the eNodeB 505, and the eNodeB 505 may thus communicate with the eNodeB 505 via the communication link 525 May permit resources to the UE 515.

The method 900 may also include communicating with the UE via a second connection via an access point using a second RAT at block 912. [ In an aspect, the scheduling component 520 may be coupled to an access point (e.g., a WLAN) using a second RAT with one or more processors 553, memory 555, and / or a transceiver 559, for example. (E. G., UE 515) over a second connection (e. G., Communication link 526) As described, for example, the scheduling component 520 may be configured between the WLAN AP 506 and the UE 515 based at least in part on communicating data to / from the WLAN AP 506 via the backhaul link 534. [ It may aggregate traffic to the UE 515 via another established communication link 526. [ Additionally or alternatively, the scheduling component 520 may determine to use a reduced number of wireless links if the data rate is determined to be below a threshold. This avoids or mitigates the issue of synchronizing sleep states across multiple wireless links. For example, the threshold may depend on link capacity achievable on one or more of the links, on the radio providing one or more links, or similar radio quality metrics.

The method 900 may also include, at block 914, transmitting a control packet to the UE via the first or second connection indicating that the power operation mode is to be exited via the second connection. In one aspect, the indicator transmission component 528 is coupled to a second connection (e. G., A communication link 526 (e. G., A communication link 524) with one or more processors 553, memory 555, and / ) To the UE (e. G., UE 515) via the first or second connection. ≪ RTI ID = 0.0 > The control packet may include a target time at which the device should go to sleep, or it may include the duration of time that the device stays out of the power save mode. As described, in one example, the indicator sending component 528 may send a control packet at the start of the data burst to the UE 515, and the indicator receiving component 550 may send a power packet It may receive a control packet to decide to leave the mode.

The method 900 also includes, at block 916, scheduling data for transmission on the first and second connections based at least in part on transmitting the control packet. In one aspect, the data scheduling component 524 is coupled to the data processing component 524, at least partially, for example, with one or more processors 553, memory 555, and / or transceiver 559, 0.0 > 1 < / RTI > and the second connection. Thus, since the control packet can cause the power mode of operation to be terminated for the second connection, the data can be received over the second connection, which allows for reorder errors caused by the second connection in power mode of operation It can be easily prevented.

The method 900 may optionally include, at block 918, transmitting another control packet to the UE via the first or second connection indicating that the power mode of operation is allowed through the second connection. In one aspect, the indicator transmission component 528 may be coupled to a second connection (e. G., A second connection), such as, for example, one or more processors 553, memory 555, and / or transceiver 559, (E.g., the communication link 526), to the UE (e. G., The UE 515) via the first or second connection. Thus, the indicator component receiving component 550 may receive the control packet and the power operation mode management component 552 may cause the communication component 540 to transmit control packets and / or other considerations (e.g., The expiration of the associated inactivity timer during the second connection) to enter a power mode of operation for the second connection.

10 illustrates an exemplary method 1000 for determining (e.g., by an eNB or eNodeB) whether a UE is in a power mode of operation through a connection in a traffic aggregation. The method 1000 includes serving the UE through the first connection using the first RAT in block 1010. [ In an aspect, the scheduling component 520 may be coupled to a first RAT (e.g., LTE or other UMTS or cellular (e.g., (E. G., Communication link 525) using a < / RTI > For example, as described, the UE 515 may perform random access procedures or otherwise request resources for communicating with the eNodeB 505, and the eNodeB 505 may thus communicate with the eNodeB 505 via the communication link 525 May permit resources to the UE 515.

The method 1000 may also include communicating with the UE via a second connection via an access point using a second RAT at block 1012. [ In an aspect, the scheduling component 520 may be coupled to an access point (e.g., a WLAN) using a second RAT with one or more processors 553, memory 555, and / or a transceiver 559, for example. (E. G., UE 515) over a second connection (e. G., Communication link 526) As described, for example, the scheduling component 520 may be configured between the WLAN AP 506 and the UE 515 based at least in part on communicating data to / from the WLAN AP 506 via the backhaul link 534. [ It may aggregate traffic to the UE 515 via another established communication link 526. [

The method 1000 also includes determining at block 1014 whether the second connection is in a power mode of operation based, at least in part, on received information from the access point indicating whether the second connection is in a power mode of operation . In one aspect, the mode information receiving component 530 may determine whether the second connection is in a power mode of operation, for example, with one or more processors 553, memory 555, and / or transceiver 559 (E.g., communication link 526) is in a power mode of operation based, at least in part, on received information from an access point (e.g., WLAN AP 506) For example, the mode information receiving component 530 may receive information from the WLAN AP 506 via the backhaul link 534. In one example, determining whether the second connection is in the power mode at block 1014 may include determining a duration to leave the power mode of operation according to the beacon interval, the DTIM interval, and / or the backhaul latency across the access point, And may optionally include a step of determining. The mode information receiving component 530 may determine a duration for exiting the power mode of operation according to the beacon interval, the DTIM interval, and / or the backhaul latency across the access point, which may be received by the WLAN AP 506. [

Thus, the method 1000 may also include, at block 1018, scheduling data for transmission on the first and second connections based at least in part on whether the second connection is in a power mode of operation. In one aspect, the data scheduling component 524 may be coupled to, for example, one or more processors 553, memory 555, and / or transceiver 559 to determine whether the second connection is in a power mode of operation, And may schedule data for transmission on the first and second connections based in part. As described, if it is determined that the second connection is not in a power mode of operation (e.g., based on information received from the WLAN AP 506), the data scheduling component 524 may determine that the first and second connections Both of which can be used to schedule data and provide traffic aggregation.

Those skilled in the art will appreciate that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referenced throughout the above description may refer to voltages, currents, electromagnetic waves, , Optical fields or particles, or any combination thereof.

Those skilled in the art will further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the aspects disclosed herein may be implemented as electronic hardware, computer software, or combinations of both will be. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the described aspects.

The various illustrative logical blocks, modules, and circuits described in connection with the aspects disclosed herein may be implemented or performed with a general purpose processor, a digital signal processor (DSP), an ASIC, an FPGA or other programmable logic device, , Separate hardware components, or any combination thereof designed to perform the functions described herein. A general purpose processor may be a microprocessor, but, in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, e.g., a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such combination of configurations.

The steps of a method or algorithm described in connection with the aspects disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such that the processor can read information from, and write information to, the storage medium. Alternatively, the storage medium may be integrated into the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Alternatively, the processor and the storage medium may reside as discrete components in a user terminal.

In one or more exemplary designs, the functions described may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on one or more instructions or code, on a computer-readable medium, or on a computer-readable medium. The computer-readable medium includes both computer storage media and communication media including any medium that enables transmission of a computer program from one location to another. The storage media may be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media can comprise a computer-readable medium such as RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage, or other magnetic storage devices, May be used to carry or store code means, and may include a general purpose or special purpose computer, or any other medium that can be accessed by a general purpose or special purpose processor. Also, any connection is appropriately referred to as a computer-readable medium. If the software is transmitted from a website, server, or other remote source, for example, using wireless technologies such as coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or infrared, radio, and microwave, Wireless technologies such as coaxial cable, fiber optic cable, twisted pair, DSL, or infrared, radio, and microwave are included within the definition of medium. Disks and discs as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc and Blu-ray disc, ) Usually reproduce data magnetically, while discs reproduce data optically with a laser. Combinations of the above should also be included within the scope of computer-readable media.

The previous description of the described aspects is provided to enable any person skilled in the art to make or use the embodiments. Various modifications to the aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the aspects described herein. Accordingly, the aspects described herein are not intended to be limited to the examples and designs described herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (30)

CLAIMS 1. A method for wireless communication,
Establishing a first connection with a first serving node by a user equipment (UE);
Establishing, by the UE, a second connection with a second serving node, wherein the first connection and the second connection are configured for traffic aggregation;
Receiving an indication of a power consumption mode for the first connection; And
And determining a power mode of operation of the second connection based at least in part on the indication. The method according to claim 1,
Wherein receiving an indication of a power consumption mode for the first connection comprises determining a reorder status associated with reordering packets received via at least one of the first connection or the second connection, Method for wireless communication. 3. The method of claim 2,
Wherein the reorder status is based on at least one of a second indication that reordering is in progress or not in progress, a time remaining for the packet reorder timer, or a time since the packet reorder timer started, . 3. The method of claim 2,
Wherein determining the power mode of operation of the second connection includes exiting the power mode of operation based at least in part upon determining the reorder status. 5. The method of claim 4,
Wherein the step of exiting the power operation mode comprises transmitting, via the second connection, at least one of uplink user data, or power saving pole, with piggybacked power saving control indicating an exit of the power operation mode , A method for wireless communication. The method according to claim 1,
Wherein receiving from the first connection an indication of the power consumption mode comprises determining whether packets received via at least one of the first connection or the second connection are successfully reordered, Wherein determining the power mode of operation of the second connection is based at least in part on a determination that the packets are successfully reordered. The method according to claim 1,
Wherein the receiving of the indication of the power consumption mode from the first connection comprises receiving an indication of the power consumption mode of the first RAT associated with entering a different power mode of operation for the first RAT after expiration of a discontinuous reception (DRX) And determining whether the DRX inactivity timer is ringing. 8. The method of claim 7,
Wherein determining that the DRX inactivity timer is ringing comprises determining that the DRX inactivity timer is ringing based on receiving a downlink transmission on the first connection. The method according to claim 1,
Wherein the step of receiving an indication of the power consumption mode from the first connection comprises: determining an on-duration of the first RAT associated with exiting a different power mode of operation for the first RAT after expiration of an on- And determining whether a timer expires. The method according to claim 1,
Wherein receiving the indication is based at least in part on receiving or transmitting a packet over the first connection. The method according to claim 1,
Wherein receiving the indication comprises receiving via the first connection or the second connection a control packet indicating to exit the power mode of operation via the second connection. 12. The method of claim 11,
Determining to exit the power mode of operation further comprises determining the power mode of operation until the power mode of operation is received through the first connection or the second connection, And determining that the mobile station is off. 12. The method of claim 11,
Wherein the control packet indicates a time to enter the power operation mode and / or leave the power operation mode. 12. The method of claim 11,
Wherein the control packet defines a periodic pattern of entering and / or leaving the power operation mode. An apparatus for wireless communication,
Transceiver;
A memory configured to store instructions; And
And at least one processor communicatively coupled to the transceiver and the memory,
Wherein the at least one processor comprises:
Establishing a first connection with a first serving node using a first radio access technology (RAT);
And establishing a second connection with a second serving node using a second RAT, wherein the first connection and the second connection are configured for traffic aggregation;
Receive an indication of a power consumption mode for the first connection;
And determine a power mode of operation of the second connection based at least in part on the indication. 16. The method of claim 15,
Wherein the at least one processor comprises:
Configured to receive an indication of a power consumption mode for the first connection based at least on determining a reorder status associated with reordering packets received via at least one of the first connection or the second connection, Apparatus for communication. 17. The method of claim 16,
Wherein the reorder status is based on at least one of a second indication that reordering is in progress or not in progress, a time remaining for the packet reorder timer, or a time since the packet reorder timer started, . 17. The method of claim 16,
Wherein the at least one processor is configured to determine a power mode of operation of the second connection based at least in part on exiting the power mode of operation based at least on determining the reorder status. 16. The method of claim 15,
Wherein the at least one processor is operable to receive an indication of the power consumption mode from the first connection based at least in part on determining whether packets received via at least one of the first connection or the second connection are successfully re- Wherein the at least one processor is configured to determine the power mode of operation of the second connection based at least in part upon a determination that the packets are reordered. 16. The method of claim 15,
Wherein the at least one processor determines whether the DRX inactivity timer of the first RAT associated with entering a different power mode of operation for the first RAT after expiration of a discontinuous reception (DRX) inactivity timer is ringing And to receive an indication of the power consumption mode from the first connection based at least on the received power consumption mode. 21. The method of claim 20,
Wherein the at least one processor is configured to determine that the DRX inactivity timer is ringing based at least in part upon a determination that the DRX inactivity timer is ringing based on receiving a downlink transmission on the first connection, . 16. The method of claim 15,
Wherein the at least one processor is configured to determine whether an on-duration timer of the first RAT associated with exiting a different power mode of operation for the first RAT after expiration of an on-duration timer expires, And receive an indication of the power consumption mode from the first connection. 16. The method of claim 15,
Wherein the at least one processor is configured to receive the indication based at least in part upon receiving a packet over the first connection. 16. The method of claim 15,
Wherein the at least one processor is configured to receive the indication based at least on receiving a control packet on the first connection or the second connection indicating to exit the power mode of operation via the second connection, Apparatus for communication. 25. The method of claim 24,
The at least one processor determines that the power operation mode is out of the power operation mode until another control packet is received over the first connection or the second connection indicating that the power operation mode is allowed for the second connection And to exit the power mode of operation based on the power mode. 25. The method of claim 24,
Wherein the control packet indicates a time or periodic pattern based on entering the power operation mode and / or leaving the power operation mode. CLAIMS 1. A method for wireless communication,
Serving a user equipment (UE) through a first connection;
Communicating with the UE via a second connection through an access point, the first connection and the second connection being configured for traffic aggregation;
Transmitting a control packet to the UE via the first connection or the second connection indicating that the power operation mode is to be exited via the second connection; And
And scheduling data for transmission on the first connection and the second connection based at least in part on transmitting the control packet. 28. The method of claim 27,
And sending another control packet over the first connection to the UE indicating that the power operation mode is allowed through the second connection. An apparatus for wireless communication,
Transceiver;
A memory configured to store instructions; And
And at least one processor communicatively coupled to the transceiver and the memory,
Wherein the at least one processor comprises:
Serve a user equipment (UE) through a first connection;
Wherein the first connection and the second connection are configured for traffic aggregation to communicate with the UE via a second connection through an access;
Transmit a control packet to the UE via the first connection or the second connection indicating that the power operation mode is to be exited via the second connection;
And to schedule data for transmission on the first connection and the second connection based at least in part on transmitting the control packet. 30. The method of claim 29,
Wherein the at least one processor is further configured to transmit another control packet over the first connection to the UE indicating that the power mode of operation is allowed through the second connection.

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